Electric vehicles, well known for silent driving, also are muting the ding of gas pumps. In less than three years, Chevrolet Volt owners in California have driven more than 130 million all-electric miles, avoiding use of an estimated 7 million gallons of gas – enough to mute gas pumps across the state for nearly eight hours.

More than 40 percent of Volt owners live in California, making the extended-range electric vehicle the top-selling plug-in electric vehicle in the Golden State.